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Nexperia USA Inc. PDTC114TT,235
- Part No.:
- PDTC114TT,235
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single, Pre-Biased Bipolar Transistors
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
PDTC114TT,235.pdf
- Description:
- TRANS PREBIAS NPN 50V TO236AB
- Quantity:
- Payment:
- Shipping:
Inventory:10,000
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Product details
Overview
PDTC114TT from Nexperia is an NPN resistor-equipped transistor (RET) in SOT23 package, integrating a 10 kΩ input bias resistor (R1) with open R2 configuration, rated for 50 V VCEO, 100 mA output current, and 250 mW power dissipation - used as a digital switch for IC input control and low-power load switching in compact consumer and industrial PCBs.
For engineers reviewing the PDTC114TT datasheet, PDTC114TT pinout, PDTC114TT application, or PDTC114TT equivalent, this page delivers verified pin mapping, real-world switching use cases, thermal limits, and validated alternatives for BC847-based designs requiring reduced component count and simplified layout.
Technical Context
This RET integrates a monolithic NPN transistor with a precision 10 kΩ base-input resistor (R1 = 7–13 kΩ typical), eliminating external bias components while maintaining DC current gain (hFE ≥ 200 at IC = 1 mA, VCE = 5 V) and low saturation voltage (VCEsat ≤ 150 mV at IC = 10 mA, IB = 0.5 mA).
Designed for surface-mount digital switching, it operates across −65 °C to +150 °C ambient, with junction-to-ambient thermal resistance of 500 K/W on FR4 PCB, and supports reflow-only soldering per JEDEC J-STD-020 standards.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 50 V maximum - defines safe collector-emitter blocking voltage in open-base switching applications |
| IO | 100 mA continuous - supports direct drive of logic inputs, LEDs, or small relays without external current limiting |
| R1 | 10 kΩ (7–13 kΩ range) - sets base current for predictable turn-on without discrete resistor placement |
| VCEsat | ≤150 mV at IC = 10 mA - ensures minimal conduction loss and low heat generation in active switching state |
| Ptot | 250 mW at Tamb ≤ 25 °C - determines maximum power handling on standard SOT23 footprint with single-sided copper |
| hFE | ≥200 at IC = 1 mA - guarantees sufficient current amplification for reliable logic-level interface operation |
| Cc | 2.5 pF - limits high-frequency signal coupling and preserves noise immunity in mixed-signal environments |
Pinout & Package
SOT23 (TO-236AB) plastic surface-mounted package with 3 leads, 1.9 mm × 1.1 mm × 1.0 mm body, standard footprint for automated pick-and-place assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | input (base) | Connected internally to R1; accepts TTL/CMOS logic-level drive directly without external resistor |
| 2 | GND (emitter) | Common reference node; ties to system ground and provides return path for base and collector currents |
| 3 | output (collector) | Switched output node; sinks load current when transistor is saturated, compatible with open-collector logic interfaces |
Key Features
| Feature | Design Value |
|---|---|
| Integrated R1 bias resistor | Eliminates need for external base resistor, reducing BOM count by one passive component per switch channel |
| 100 mA output capability | Enables direct driving of microcontroller I/O pins, status LEDs, and small solenoids without buffer stages |
| Low VCEsat (≤150 mV) | Minimizes power loss and self-heating during sustained on-state operation in battery-powered devices |
| SOT23 package compatibility | Supports high-density routing and automated assembly on space-constrained PCBs with industry-standard land pattern |
| −65 °C to +150 °C operating range | Validated for use in automotive under-hood modules, industrial controllers, and outdoor IoT enclosures |
Applications
| Microcontroller GPIO Interface | LED Indicator Control |
|---|---|
Use Scenario: Driving logic inputs of MCU peripherals (e.g., reset lines, enable pins) with clean, current-limited switching. IC Role / Device Role / Timing Role: Digital switch providing level translation and current isolation between controller outputs and downstream logic blocks. Use Value: Prevents overdrive damage to sensitive inputs while ensuring fast, deterministic edge response via fixed R1 biasing. |
Use Scenario: Controlling status LEDs on embedded boards where board space and component count are constrained. IC Role / Device Role / Timing Role: Constant-current sink switch enabling uniform LED brightness without external current-setting resistors. Use Value: Reduces bill-of-materials by 33% per LED channel and eliminates resistor tolerance-induced brightness variation. |
| Low-Power Relay Driver | Level-Shifting Signal Switch |
Use Scenario: Activating 5 V or 12 V reed relays in smart home sensors and industrial I/O modules. IC Role / Device Role / Timing Role: Medium-current switch interfacing low-voltage logic to higher-voltage relay coils. Use Value: Delivers 100 mA peak coil current with <150 mV saturation drop, minimizing coil heating and extending relay life. |
Use Scenario: Converting 3.3 V logic signals to 5 V domains in mixed-voltage systems such as USB host controllers or sensor hubs. IC Role / Device Role / Timing Role: Active-low level shifter using emitter-follower or common-emitter topology with defined R1 bias. Use Value: Provides deterministic turn-on threshold and rise/fall times without external pull-up networks or timing uncertainty. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar NPN digital switching applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BC847B,215 | No integrated bias resistors; requires external 10 kΩ base resistor and optional pull-down | Higher design flexibility but increases PCB area and assembly steps for each switch node | Select when precise hFE binning or custom biasing is required beyond fixed R1 architecture |
| PDTA114TT,235 | PNP complement with identical SOT23 package, R1 = 10 kΩ, VECO = 50 V, same thermal specs | Used for high-side switching or inverted logic paths where sourcing current is needed instead of sinking | Select for complementary switching pairs or dual-rail logic interface circuits requiring matched RET characteristics |
Compared with BC847B and PDTA114TT, PDTC114TT offers plug-and-play digital switching with guaranteed R1 tolerance and reduced layout complexity, making it optimal for high-volume, cost-sensitive designs where consistent turn-on behavior and minimal component count are prioritized.
Availability
PDTC114TT is available at Aetrix Electronics and suitable for microcontroller interface, LED control, relay driving, and level-shifting applications requiring stable component supply and long-term production continuity.
Supply support for PDTC114TT includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Nexperia is a global semiconductor expert delivering high-performance, reliable discrete, logic, and MOSFET solutions for automotive, industrial, and consumer markets.
PDTC114TT belongs to the NPN Resistor-Equipped Transistor (RET) product line, engineered to replace traditional BJT + resistor combinations in digital switching applications with improved consistency, reduced footprint, and lower assembly cost.
FAQ
What is the function of the internal R1 resistor in PDTC114TT?
The internal R1 resistor (10 kΩ, ±3 kΩ) connects between pin 1 (base input) and the transistor's base terminal, providing automatic current-limiting bias for logic-level drive. It eliminates the need for an external base resistor, simplifying circuit design and reducing component count while ensuring predictable turn-on behavior across temperature and process variations.
Can PDTC114TT be used in linear amplifier applications?
No - PDTC114TT is optimized for digital switching, not analog amplification. Its integrated R1 resistor fixes the base bias point, preventing adjustable quiescent current setting. The datasheet specifies only switching parameters (VCEsat, hFE at IC = 1 mA), and no small-signal gain or frequency response data is provided for linear operation.
Is PDTC114TT RoHS compliant and halogen-free?
Yes - PDTC114TT meets RoHS Directive 2011/65/EU and is halogen-free per IEC 61249-2-21. Nexperia confirms compliance in its official product change notifications and material declarations, with lead-free matte tin termination and exemption 7a (Pb in high-melting-temperature solder) not applicable due to Pb-free construction.
How does PDTC114TT compare to generic SOT23 NPN transistors in terms of thermal performance?
PDTC114TT has a junction-to-ambient thermal resistance (Rth(j-a)) of 500 K/W on standard FR4 PCB - identical to BC847B in SOT23. However, its integrated resistor adds ~5 mW static dissipation at VIN = 5 V, slightly increasing total die temperature under continuous on-state conditions compared to bare transistors without bias networks.
PDTC114TT,235 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Transistor Type:
- NPN - Pre-Biased
- Current - Collector (Ic) (Max):
- 100 mA
- Voltage - Collector Emitter Breakdown (Max):
- 50 V
- Resistor - Base (R1):
- 10 kOhms
- Resistor - Emitter Base (R2):
- -
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 200 @ 1mA, 5V
- Vce Saturation (Max) @ Ib, Ic:
- 150mV @ 500µA, 10mA
- Current - Collector Cutoff (Max):
- 1µA
- Frequency - Transition:
- -
- Power - Max:
- 250 mW
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-236AB
PDTC114TT,235 FAQ
1.How can I place an order for PDTC114TT,235 through Aetrix?
Please submit a Request for Quotation (RFQ) for PDTC114TT,235 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for PDTC114TT,235 reliable?
The price and inventory of PDTC114TT,235 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PDTC114TT,235 is usually 5 days.
3.What payment methods are accepted for PDTC114TT,235?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PDTC114TT,235 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PDTC114TT,235?
PDTC114TT,235 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PDTC114TT,235 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for PDTC114TT,235?
For technical support, including PDTC114TT,235 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PDTC114TT,235 requirements.
6.How does Aetrix verify that PDTC114TT,235 is sourced from the original manufacturer or authorized distributors?
All PDTC114TT,235 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that PDTC114TT,235 meets industry standards.
7.What is the process for return or replacement of PDTC114TT,235?
All PDTC114TT,235 units undergo pre-shipment inspection (PSI). If there is an issue with PDTC114TT,235, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The PDTC114TT,235 part is unused and in its original packaging.
Return procedure for PDTC114TT,235:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PDTC114TT,235 Tags
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